http://d20npcs.wikia.com/wiki/D20_Modern_NPCs_by_Challenge_Rating
http://paizo.com/pathfinderRPG/prd/monsters/monsterIndex.html
http://www.d20pfsrd.com/
http://spellbooksoftware.com/d20mrsd/srdhome.html
http://donjon.bin.sh/d20/initiative/
Cypher system tools:
http://troyjonesiii.blogspot.com/p/the-cypher-system.html